UBR buffer tube | UBR 專用拖桿

Machined from single piece of 6061T6 aluminum, strength guaranteed.
Real steel spec threaded, drop-in solution to upgrade you PTS UBR stock.
整支 6061T6 鋁條一體 NC 加工，強度保證。
真品牙規格，改裝 PTS UBR 的救星。